Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Description / UniqueCodeIdentifierScope.cs / 1 / UniqueCodeIdentifierScope.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace System.ServiceModel.Description { using System; using System.Collections.Generic; using System.Globalization; using System.Text; using System.CodeDom; class UniqueCodeIdentifierScope { const int MaxIdentifierLength = 511; SortedListnames = null; // assumes identifier is valid protected virtual void AddIdentifier(string identifier) { if (names == null) names = new SortedList (StringComparer.OrdinalIgnoreCase); names.Add(identifier, identifier); } // assumes identifier is valid public void AddReserved(string identifier) { DiagnosticUtility.DebugAssert(IsUnique(identifier), ""); AddIdentifier(identifier); } // validates name before trying to add public string AddUnique(string name, string defaultName) { string validIdentifier = MakeValid(name, defaultName); string uniqueIdentifier = validIdentifier; int i = 1; while (!IsUnique(uniqueIdentifier)) { uniqueIdentifier = validIdentifier + i++.ToString(CultureInfo.InvariantCulture); } AddIdentifier(uniqueIdentifier); return uniqueIdentifier; } // assumes identifier is valid public virtual bool IsUnique(string identifier) { return names == null || !names.ContainsKey(identifier); } static bool IsValidStart(char c) { return (Char.GetUnicodeCategory(c) != UnicodeCategory.DecimalDigitNumber); } static bool IsValid(char c) { UnicodeCategory uc = Char.GetUnicodeCategory(c); // each char must be Lu, Ll, Lt, Lm, Lo, Nd, Mn, Mc, Pc switch (uc) { case UnicodeCategory.UppercaseLetter: // Lu case UnicodeCategory.LowercaseLetter: // Ll case UnicodeCategory.TitlecaseLetter: // Lt case UnicodeCategory.ModifierLetter: // Lm case UnicodeCategory.OtherLetter: // Lo case UnicodeCategory.DecimalDigitNumber: // Nd case UnicodeCategory.NonSpacingMark: // Mn case UnicodeCategory.SpacingCombiningMark: // Mc case UnicodeCategory.ConnectorPunctuation: // Pc return true; default: return false; } } public static string MakeValid(string identifier, string defaultIdentifier) { if (String.IsNullOrEmpty(identifier)) return defaultIdentifier; if (identifier.Length <= MaxIdentifierLength && System.CodeDom.Compiler.CodeGenerator.IsValidLanguageIndependentIdentifier(identifier)) return identifier; StringBuilder builder = new StringBuilder(); for (int i = 0; i < identifier.Length && builder.Length < MaxIdentifierLength; i++) { char c = identifier[i]; if (IsValid(c)) { if (builder.Length == 0) { // check for valid start char if (!IsValidStart(c)) builder.Append('_'); } builder.Append(c); } } if (builder.Length == 0) return defaultIdentifier; return builder.ToString(); } } class UniqueCodeNamespaceScope : UniqueCodeIdentifierScope { CodeNamespace codeNamespace; // possible direction: add an option to cache for multi-use cases public UniqueCodeNamespaceScope(CodeNamespace codeNamespace) { this.codeNamespace = codeNamespace; } public CodeNamespace CodeNamespace { get { return this.codeNamespace; } } protected override void AddIdentifier(string identifier) { } public CodeTypeReference AddUnique(CodeTypeDeclaration codeType, string name, string defaultName) { codeType.Name = base.AddUnique(name, defaultName); codeNamespace.Types.Add(codeType); return ServiceContractGenerator.NamespaceHelper.GetCodeTypeReference(this.codeNamespace, codeType); } public override bool IsUnique(string identifier) { return !NamespaceContainsType(identifier); } bool NamespaceContainsType(string typeName) { foreach (CodeTypeDeclaration codeType in codeNamespace.Types) { if (String.Compare(codeType.Name, typeName, StringComparison.OrdinalIgnoreCase) == 0) { return true; } } return false; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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